3999941 has 8 divisors (see below), whose sum is σ = 4514400. Its totient is φ = 3510640.

The previous prime is 3999929. The next prime is 3999949. The reversal of 3999941 is 1499993.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3999941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3999892 and 3999901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3999949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5951 + ... + 6588.

It is an arithmetic number, because the mean of its divisors is an integer number (564300).

Almost surely, 2^3999941 is an apocalyptic number.

It is an amenable number.

3999941 is a deficient number, since it is larger than the sum of its proper divisors (514459).

3999941 is a wasteful number, since it uses less digits than its factorization.

3999941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12579.

The product of its digits is 78732, while the sum is 44.

The square root of 3999941 is about 1999.9852499456. The cubic root of 3999941 is about 158.7393247208.

The spelling of 3999941 in words is "three million, nine hundred ninety-nine thousand, nine hundred forty-one".